How does the 5-1 rotation work in volleyball?

In a 5-1 system, one designated setter always sets regardless of whether they are in the front row or back row. This gives the team up to three front-row hitters when the setter is in the back row, and two hitters plus a setter dump option when the setter is front row.

Full Explanation

The 5-1 system uses one setter and five attackers. As the team rotates through all six positions, the setter sets from both front-row and back-row positions. When the setter is in the back row (three rotations), all three front-row players are eligible to attack; the back-row setter may not attack above net height from in front of the attack line (FIVB Rule 13.3.2). When the setter is in the front row (three rotations), two outside hitters are available plus the setter may choose to dump (attack) on the second contact. Players may move freely after the serve is contacted (FIVB Rule 7.6.1), so the setter typically penetrates from position 1 to the setter zone near position 2/3. Overlap rules (FIVB Rule 7.5) must be respected at the moment of serve.

Rulesets covered: FIVB/USAV/NFHS/NCAA  |  Rule Reference: FIVB Rule 7.5; FIVB Rule 13.3.2